Incinerator



June 3 1924. 1,496,281

' J. W. STQKES INCINERATOR Filed Dec. 9, 1922 2 ghets-Sheet 1 June 3, 1924. 1,496,281

- J. w. STOKES sari tron.

JOHN w. s'rOKES F DALLAS, rnxas.

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Application filed December 9, 1922. Serial No. 605,802. I

certain improvements upon my furnace for' which Letters Patent were granted May 9th, 1916, No. 1,182,511.

A particular object of the invention is to provide an auxiliary combustion chamber separated from the main combustion chamher, but interposed between the said main chamber and the stack, whereby a more complete combustion and ignition of the gases is had. which results in a substantial elimination of the odoriferous gases.

construction designed to carry out the invention together with other features of the invention will be hereinafter described.

The invention will be more readily under stood from areading of the following speciiication and by reference to the accompanying drawings in which an example of the in vention is shown and wherein:

.1v is a front elevation of an incinerw tor constructed in accordance with my invention,

Fig, 2 is a horizontal cross-sectional view taken on the line 2,2of Fig. 1,

Fig. 3 is a longitudinal sectional view taken on the line 33 of Fig. 2, and

F 4 A is a transverse sectional view on the line 1+4 of Fig. 2.

In the drawings the numeral designates a base or bottom from which a front wall 11 and. back wall 12 extend upwardly and are connected by side walls 13 and let re. spectively, also projecting upwardly from the base. The sidewalls are connected by an arch 15 of refractory material which extends from the front wall to therear wall and forms the roof of the combustion chamber enclosed by the base 10 and the walls 11, 12, 13 and 1.4-. The entire chamber is preferably lined with refractory material such as fire bricks. Over the arch a platform 16 is constructed in accordance with thepractice in this art. An opening 17 is provided in the top of the furnace and is closed by a cover 18. By removing the cover garbage,

carcasses and other waste matter either wet or dry may be dumped intov the incinerator.

The rearwall 12 is curved downwardly and forwardly at its intersection with the base and merges into the floor of the fur nace, which is provided with a, sump 19 adjacent said curved portion for the reception of oils and liquids. At the front central portion of the base an ash grate 20 is disposed over a pit; 21, access to which is had by doors 22. The matter which is dumped into the combustion chamber falls upon the floor or base 10 and the rear portion of the grate 20 and the incinerated portions may be raked forwardly at intervals sothat the ashes will fall thru the grate into the pit 21. The unconsumed matter may be raked onto the grate and the draft may be accelerated by opening the lower door 22.

. Adjacent the side wall 13 a fuel grate 23 is arranged and extends rearwardly from a fire opening 24 in the. front wall. An ex tension grate 25 in the form of a continuation of the grate 23 is also provided. The grates are over a pit 26 which is closed at its front end by a door 27. (in the side grate 23 opposite from the wall 13, a baflle wall 28 extends rearwardly from the front wall 12 and fromthe base to the arch. The firebox which is thus formed overthe grate 23 and the grate 25 is closed at its front end bya door 29.. The rear portion of the grate 25 extenes beyond the baflle wall.

Along the opposite side of themain co nbus'tion chamber and contiguous to the wall 11, auxiliary grates 30 are arranged inadjacent relation to the grate 20. Access is had to these grates 30 thru an opening 31 in the front wall and a pit 32 is provided under said grates. A door 33 closesthe opening 31, whil a door 34 closes the frontend of the pit. The matter dumped into the main combustion chamber falls and is also raked onto the grates 30.

At the spring of the arch 15a. horizontal duct 35 provid es an escape for the gases-into an auxiliary combustion chamber 36 dis posed parallel-with the main chamber. The duct is elevated above all the grates and creates an efiicient draft. At the rear end of the auxiliary chamber 36 is erected an outside smoke stack 37, which has communication with the chamber 36 by a duct 38. Access may be had to the stack thru a cleanout door 39 disposed below the duct 38.

In operating the incinerator a fire is first built upon the grate 23, fuel being introduced thru the opening 24:. A considerable draft will be produced by the stack 37 which of course is built to the proper height for the purpose. This draft causes the products of combustion to circulate in the furnace chamber in the general direction of the duct 35, the rear end of the baffle wall 28 being rounded to promote circulation. The furnace is heated to the proper temperature upon which the cover 18 is removed and garbage and other waste matter introduced thru the opening 17. Owing to the forward curvature of the rear wall 12 at its intersection with the base 10, matter falling thereon has a tendency to work forwardly onto the grates 20 and 30.

The smoke and gases are drawn across the main combustion chamber and upward toward the draft opening While an intense heat is had in the combustion chamber and the matter is incinerated therein, certain odoriferous gases will escape thru the duct For this reason the auxiliary combustion chamber has been provided. This chamber being lined with fire brick or equivalent material becomes extremely hot and the gases passing thru the same are consumed or robbed of their obnoxious properties.

A certain portion of the garbage may be used for fuel and for this purpose the extension grate is provided so that a portion of each deposit of garbage may be raked thereonto if desired. The grates may be used for burning the garbage which may be raked onto the same and by opening the door 3% sutlicient oxygen is admitted to promote combustion of the matter on said grates.

It is obvious that almost any condition encountered in the incineration of garbage and other waste matter may be handled to the best advantage in this furnace; and further it maybe operated at a minimum expense owing to its economical fuel arrangements.

Various changes in the size and shape of the parts as well as alterations and modifications, may be 'made within the scope of the appended claims.

\Vhat I claim, is:

1. In an incinerator, a combustion cham ber having an arch top provided with an opening for admitting garbage, a base at the bottom of the chamber, a fuel grate at one side of the main combustion chamber, a vertical baflie wall extending rearwardly from the front wall of the main chamber and co-operating with the fuel grate and its adjacent wall to provide a fire fuel box, an extension fuel grate projecting beyond the baflle wall, an ash grate at the central front portion of the base, auxiliary garbage grates at the side of the main chamber opposite to the fuel grates and contiguous to the ash grate, an auxiliary combustion chamber parallel to the main combustion chamber and having connection at one end only with the main chamber, and a smoke stack having connection with the opposite end of the auxiliary chamber.

2. In an incinerator, a main combustion chamberhaving a battle wall and grates, an auxiliary combustion chamber parallel to the main chamber, a duct connecting the two chambers at their front ends, and a smoke stack connected with the rear end of the auxiliary chamber.

3. In an incinerator, a main combustion chamber having a bal'lie wall and grates, an auxiliary combustion chamber parallel to the main chamber, a duct connecting the two chambers at their front ends, a smoke stack at the rear end of the auxiliary cham ber, and a duct connecting the rear end of the auxiliary chamber with the stack, said duct being less in width than the auxiliary chamber, whereby the products of combustion are retarded in said auxiliary chamber. 4. In an incinerator, a burning chamber having abaffie wall and grates, an auxiliary combustion chamber parallel to the burning chamber, an opening connecting the front ends of the chambers, and a line entrance at the rear end of the combustion chamber.

5. In an incinerator, a burning chamber having a baffle wall and grates, an auxiliary combustion chamber parallel to the burning chamber, an opening connecting the front ends of the chambers, and a restricted flue entrance at the rear end of the combustion chamber.

6. In an incinerator, a burning chamber having a baffle wall and grates, an auxiliary combustion chamber parallel to the burning chamber, an opening connecting the front ends of the two chambers, a smoke stack at the rear of the combustion chamber, and an entrance between the rear end of the combustion chamber and the stack, said entrance being less in width than the combustion chamber, whereby the gases are retarded in said chamber.

In testimony whereof I affix my signature.

JOHN IV. STOKES. 

